Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
[linux-2.6.git] / sound / soc / au1x / db1200.c
1 /*
2  * DB1200/DB1300/DB1550 ASoC audio fabric support code.
3  *
4  * (c) 2008-2011 Manuel Lauss <manuel.lauss@googlemail.com>
5  *
6  */
7
8 #include <linux/module.h>
9 #include <linux/moduleparam.h>
10 #include <linux/timer.h>
11 #include <linux/interrupt.h>
12 #include <linux/platform_device.h>
13 #include <sound/core.h>
14 #include <sound/pcm.h>
15 #include <sound/soc.h>
16 #include <asm/mach-au1x00/au1000.h>
17 #include <asm/mach-au1x00/au1xxx_psc.h>
18 #include <asm/mach-au1x00/au1xxx_dbdma.h>
19 #include <asm/mach-db1x00/bcsr.h>
20
21 #include "../codecs/wm8731.h"
22 #include "psc.h"
23
24 static struct platform_device_id db1200_pids[] = {
25         {
26                 .name           = "db1200-ac97",
27                 .driver_data    = 0,
28         }, {
29                 .name           = "db1200-i2s",
30                 .driver_data    = 1,
31         }, {
32                 .name           = "db1300-ac97",
33                 .driver_data    = 2,
34         }, {
35                 .name           = "db1300-i2s",
36                 .driver_data    = 3,
37         }, {
38                 .name           = "db1550-ac97",
39                 .driver_data    = 4,
40         }, {
41                 .name           = "db1550-i2s",
42                 .driver_data    = 5,
43         },
44         {},
45 };
46
47 /*-------------------------  AC97 PART  ---------------------------*/
48
49 static struct snd_soc_dai_link db1200_ac97_dai = {
50         .name           = "AC97",
51         .stream_name    = "AC97 HiFi",
52         .codec_dai_name = "ac97-hifi",
53         .cpu_dai_name   = "au1xpsc_ac97.1",
54         .platform_name  = "au1xpsc-pcm.1",
55         .codec_name     = "ac97-codec.1",
56 };
57
58 static struct snd_soc_card db1200_ac97_machine = {
59         .name           = "DB1200_AC97",
60         .owner          = THIS_MODULE,
61         .dai_link       = &db1200_ac97_dai,
62         .num_links      = 1,
63 };
64
65 static struct snd_soc_dai_link db1300_ac97_dai = {
66         .name           = "AC97",
67         .stream_name    = "AC97 HiFi",
68         .codec_dai_name = "wm9712-hifi",
69         .cpu_dai_name   = "au1xpsc_ac97.1",
70         .platform_name  = "au1xpsc-pcm.1",
71         .codec_name     = "wm9712-codec.1",
72 };
73
74 static struct snd_soc_card db1300_ac97_machine = {
75         .name           = "DB1300_AC97",
76         .dai_link       = &db1300_ac97_dai,
77         .num_links      = 1,
78 };
79
80 static struct snd_soc_card db1550_ac97_machine = {
81         .name           = "DB1550_AC97",
82         .dai_link       = &db1200_ac97_dai,
83         .num_links      = 1,
84 };
85
86 /*-------------------------  I2S PART  ---------------------------*/
87
88 static int db1200_i2s_startup(struct snd_pcm_substream *substream)
89 {
90         struct snd_soc_pcm_runtime *rtd = substream->private_data;
91         struct snd_soc_dai *codec_dai = rtd->codec_dai;
92         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
93         int ret;
94
95         /* WM8731 has its own 12MHz crystal */
96         snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
97                                 12000000, SND_SOC_CLOCK_IN);
98
99         /* codec is bitclock and lrclk master */
100         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
101                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
102         if (ret < 0)
103                 goto out;
104
105         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J |
106                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
107         if (ret < 0)
108                 goto out;
109
110         ret = 0;
111 out:
112         return ret;
113 }
114
115 static struct snd_soc_ops db1200_i2s_wm8731_ops = {
116         .startup        = db1200_i2s_startup,
117 };
118
119 static struct snd_soc_dai_link db1200_i2s_dai = {
120         .name           = "WM8731",
121         .stream_name    = "WM8731 PCM",
122         .codec_dai_name = "wm8731-hifi",
123         .cpu_dai_name   = "au1xpsc_i2s.1",
124         .platform_name  = "au1xpsc-pcm.1",
125         .codec_name     = "wm8731.0-001b",
126         .ops            = &db1200_i2s_wm8731_ops,
127 };
128
129 static struct snd_soc_card db1200_i2s_machine = {
130         .name           = "DB1200_I2S",
131         .owner          = THIS_MODULE,
132         .dai_link       = &db1200_i2s_dai,
133         .num_links      = 1,
134 };
135
136 static struct snd_soc_dai_link db1300_i2s_dai = {
137         .name           = "WM8731",
138         .stream_name    = "WM8731 PCM",
139         .codec_dai_name = "wm8731-hifi",
140         .cpu_dai_name   = "au1xpsc_i2s.2",
141         .platform_name  = "au1xpsc-pcm.2",
142         .codec_name     = "wm8731.0-001b",
143         .ops            = &db1200_i2s_wm8731_ops,
144 };
145
146 static struct snd_soc_card db1300_i2s_machine = {
147         .name           = "DB1300_I2S",
148         .dai_link       = &db1300_i2s_dai,
149         .num_links      = 1,
150 };
151
152 static struct snd_soc_dai_link db1550_i2s_dai = {
153         .name           = "WM8731",
154         .stream_name    = "WM8731 PCM",
155         .codec_dai_name = "wm8731-hifi",
156         .cpu_dai_name   = "au1xpsc_i2s.3",
157         .platform_name  = "au1xpsc-pcm.3",
158         .codec_name     = "wm8731.0-001b",
159         .ops            = &db1200_i2s_wm8731_ops,
160 };
161
162 static struct snd_soc_card db1550_i2s_machine = {
163         .name           = "DB1550_I2S",
164         .dai_link       = &db1550_i2s_dai,
165         .num_links      = 1,
166 };
167
168 /*-------------------------  COMMON PART  ---------------------------*/
169
170 static struct snd_soc_card *db1200_cards[] __devinitdata = {
171         &db1200_ac97_machine,
172         &db1200_i2s_machine,
173         &db1300_ac97_machine,
174         &db1300_i2s_machine,
175         &db1550_ac97_machine,
176         &db1550_i2s_machine,
177 };
178
179 static int __devinit db1200_audio_probe(struct platform_device *pdev)
180 {
181         const struct platform_device_id *pid = platform_get_device_id(pdev);
182         struct snd_soc_card *card;
183
184         card = db1200_cards[pid->driver_data];
185         card->dev = &pdev->dev;
186         return snd_soc_register_card(card);
187 }
188
189 static int __devexit db1200_audio_remove(struct platform_device *pdev)
190 {
191         struct snd_soc_card *card = platform_get_drvdata(pdev);
192         snd_soc_unregister_card(card);
193         return 0;
194 }
195
196 static struct platform_driver db1200_audio_driver = {
197         .driver = {
198                 .name   = "db1200-ac97",
199                 .owner  = THIS_MODULE,
200                 .pm     = &snd_soc_pm_ops,
201         },
202         .id_table       = db1200_pids,
203         .probe          = db1200_audio_probe,
204         .remove         = __devexit_p(db1200_audio_remove),
205 };
206
207 module_platform_driver(db1200_audio_driver);
208
209 MODULE_LICENSE("GPL");
210 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support");
211 MODULE_AUTHOR("Manuel Lauss");